Washing-machine mechanism



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WASHING MACHINE MECHANI SM Filed Oct. 15. 1925 2 Sheets-Sheet l dimm INVENTORS.

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pnumlf 1,629 218 May 17 1927 A. G. LARsoN ET AL ,f 7

WASHING MACHINE MECHANISM me@ oct. 15, 192s 2- sheets-sheet 2 Patented May 17, 1927. I Y

avi-.BERT efnnnrsom-oririnnmonr, alivia'Env/wan:nucoornnf'onsan'LEAivnnopcAnL l CALIFORNIA.

i vWASHING,-ivnioriiicn .Mimi-minera Y' 'iippiication aannemer-15, '1925.` 'seriall Nb. 62,532.

. This invention ,relates to a washingv chine -inech anisin andfespecially to improvements 0n,t-li etype'V ofmacliine disclosed in .thez-patentto Eric .Lindberg entitled Vashingmacliine, Patent Number 1,523,027

sued `January-13, 1925. c

VThe Washing :,inachine yillusti'ated vin* the patent above i'eferred to -is of a plunger type. .Af continuously .operating ,driving shaft imparts areciprocal and :rotary movement to the plungerian'd only one reciprocal `@ne ffoiin which our inventionvinay Vasv sume yis,;,cles ,cribed in the following specilica'- tionV and-illustrated ,inY the accompanying drawings, iinL Which- 1 gFig.v l is a sectional ivieiv of la Wash tub "sliowingthe washing machine and:thedriv-l ingmechanisnifin side elevation.' ,Fig.2 is al cross -section' taken online II-II of Fig. l. c

Referiingtoithe drawings in detail and particularly y to' .'Figml, -A' -ji1nclicates a Wash tub of any suitable nature. Supported by the upper edge of tlie tub is a base plate B, and supported by the base plate is an electric driving motor 2, a gear reduction mechanism 3, and a rocker shaft t. Thel base plate is in this'instance hingedly secnredto 1 one edge of tlie tub as shown at 5 andit reduction gear 3 drives the `shaft 9 vand ay also forms a cover for the tub. vThe center portion of the haseplate is raised to forin an auxiliary housing .generally indicated at C, and this raised portion has a journal member formed in one side Wall as at 6 in Which the rocker shaft 4 isjournaled.` Sccured on the outer end of the rocker shaft is a comparatively short. crank arm 7 to which a rocking movement is transmitted through means of a connecting rod 8. The

crank arm is secured to the shaft as indi* cated at 10. The other end of the connecting Arod-"is connected with this grfankarinj` aiid- ,the continuous rotationffof the crank', anni :l0 `transmits c a rockinghmoveinent to the l andthe shafti.l y Secured to the innery .face gofthe 4base'plate or cover ineniberBfj ain-l. Aextending` downwardly therefrom 'is a bracket ,fllfivhich carries la ,bearing member 121. l Journa'led in this Ybearii'ig ,is a 'rocker i or llsain liinanna'o,

shaft .13 'ont-he outer' end ofin'flfiicliis` formed` a l@ Recipr-ocally mounted in the rocker beariiigisafs'haft or rod l15 andy secured on the lower, endjthereoffis a plnnger cup Secured-(inthe*upper endl of theiodlis a head,menibenlf Carried bytlielieadis apin 18 andc'onnected .tlierefv xvitli: ,acrankiarm k19 which is secured' aty its upl'ierendQto -the rockersh'aft' asindicatedifatf20. y

. The ,operation .of the mechanism will be as,

follows continnousrotationis transmitted tothe sliaftthroughithe electric motor2 andV the gear reduction 3. K vThis continnuos `ro`` tation transmits a rotary niovenient'to 4the cran-k 10, :and this Yinj turn Ytransmits a rocks, ingvjinoveinent:tothe cranks rWand 19 throngh the connecting'frod 8 and ,the rocker shaft-l,v lTliejhead member is securedon` the upperrendoftheplunger shaft l5 :and

otally .attached theretol an oscillati'i'igniov'e# nienti Will be transnii'tted 'to sliaft' 15 andthe plunger cnp 16 and tvvoieciproca'l movements will VValways he `t'ransin'itte'dduring each revolutionof the .dniving s'haftQ. a decided advantage when comparison 'is made Witli tlie fornierpatent referred to* as the efficiency of the Washing ineclianism'is substantially doubled. The two reciprocal movements imparted to the plunger cup Will, as

previously stated, take place during each y revolution of the shaft 9.`v This isfdue to lthe factthat the crank arms 7 and l9i'ock vor oscillate Whilethe crank 10 rot-ates.- When crank l0 assumes the position'shown at 10,

crank arms 7 andl9 assume dotted line lpoi sition indicated at 7@ and 19a',l and-'the c plunger shaft and plunger assume the dotted line positionindicated at 15CL and 16a; when crank l0 assumes the dotted line position inc .dicated at l0, the position of the-cranks 7 and 19 is reversed, and thev plunger shaft and cup assume the dotted line position in-y dicated at 15b and `16";and when crank l0 assumes either of theJ dotted line positions shown at 10'" and 106,shaft`1'5. and plunger 16 assume the full line position* shown in Fig. l. It is lfor this reason that an oscillating movement is transmitted to the plunger y lo and -tworeciprocal movements are simulfv taneouslyy produced during each single revolution of the drive shaft 9.

Y' Having thus described our invention, What we claim and desire to secure by Letters Patent 1syl. In a .washingunachine of the character. described, ,a supporting member, a driving motor, a continuously operating driving shaft driven by the motor, a rocker shaft journaled on'the support, means kfor transmitting a rocking movement from the drive shaft to said rocker shaft, afreciprocally mounted plunger also carried by'e'thesupport, and means whereby a reciprocal and a simultaneous oscillating movement in a vertical plane is transmitted fromV the rocker shaft to thep'lunger.

` described, the combination with the plunger and the rod supporting the same of a driving mechanism 'therefor whereby a simultaneous reciprocal and oscillating movement is transmitted, saidmechanism comprising an upper and a lower stationary bearing, a rocker shaft journalledv in the upper bearing, a pivoted guide bearing mounted in the lower bearing, said plunger rod extending through said pivoted bearing and being guided thereby during yits reciprocal and vertical oscillating movement, a head member secured to the plunger rod, a crank arm,V secured to the rocker shaft, a pin on the head member forming a pivotal connection between the head member and the' crank arm and means ,for

transmitting rocking movement to the rocker shaft. f f M vLl. In a washing machine of the character described, a rod and a plunger mounted on the lower end'thereof, 'a bracket, la pivotally mounted bearingfmember in the bracket in which the rod and plunger are adapted toreciprocate, a rocker shaft journall'ed in the bracket above the pivotally 'mounted bear-V a crank arn'ion one end of the shaft, a` driving shaft, a crank arm thereon, a link ing,

connecting the lirst named crank'and the second named crank and adapted to transmit a rocking movement tothe rocker shaft, a second crank arm on the rocker shaft, a

swinging end of said last namedrocker arm,

anda connection formed betvveenfsaid bearing and the plunger rod. V

5. In a washing machine of the character described, a rod and ra plunger mounted on the lower -end thereof, a bracket, a pivotally' mounted bearing member in the bracket in which the rod and plunger are adapted to reciprocate, af rocker shaft journalled inthe bracket above thepivot-ally mounted bearing, a crank arm on one end of the shaft, a driving shaft, a crank arm thereon, a' link connecting the `first named crank and' the second named 'crank and adapted `to transmit arocking` movement to the Vrocker shaft, a second crank arin'on the rocker shaft, a

bearing member pivotally mounted Vin the swinging lend of said last named rocker arm, and an ladjustable connection formed bei tweensaid `bearing and the plunger rod per mitting vertical adjustment ofthe plungerv rod and plunger.

' ALBERT G. LARSON.

EDWARD kR. COOPER.

bearing member pivotallymounted in the y .wi-N 

